public class Shape {
	protected float x;
	protected float y;

	public Shape(float x, float y) {
		this.x = x;
		this.y = y;
	}
	
	@Override public boolean equals(Object other) {
		// TODO
		return false;
	}
	
	public static float sumAreas(Shape[] shapes) {
		// TODO:
		return 0;
	}
	
	public static void main(String[] args) {

	}
}